Study concludes U.S.-made cigarettes contain more carcinogens than those produced in other countries

Cigarette brands produced by U.S. tobacco companies provide higher levels of toxic chemicals, which cause cancer, than cigarettes brands made in other countries, deduced a study carried out by U.S. Centers for Disease Control and Prevention (CDC).

According to the study conducted by CDC research team, the tobacco for U.S.-made tobacco products is blended with more cancer-causing substances than cigarettes manufactured in such countries as Canada, Australia and the United Kingdom.

Pack of cigarettes

Pack of cigarettes

During the research, scientists examined 126 current smokers from the above-mentioned counties. The smokers who took part in the research were aged 18-55 years and smoked an average of 15 cigarettes daily for the last 12 months.

All the participants were loyal to a certain popular cigarette brand, referred to as ‘American Blend’ for more than 3 months.

Researchers studied 126 daily smokers from the four countries. The CDC doesn’t specify which U.S. brand was used, only identifying it as an “American blend” that represented popular brands.

Among the brands appearing in the research was Marlboro cigarettes produced by Philip Morris USA, Lorillard’s Newport, UK’s Benson & Hedges and Winfield in Australia both produced by British American Tobacco, and Players in Canada made by Imperial Tobacco.

The research team examined over 2000 cigarette butts.

After testing the cigarettes produced in the USA, Australia, Canada and the United Kingdom, the scientists discovered that tobacco products made in the United States featured ‘American Blend’ tobacco that provided high levels of tobacco-specific nitrosamines (TSNA), cancer-causing chemicals which are involved in development of malignant tumors.

The cigarettes manufactured in other countries contained were made from other sorts of tobacco which provided lower levels of carcinogens.

To calculate the levels of tobacco-specific nitrosamines, the scientists measured the amount of these substances in cigarettes butts and in urine and saliva of smokers who took part in the research. They discovered that smokers of U.S.-made cigarettes were exposed to three-time higher levels of carcinogens than those smokers who consumed cigarettes from other countries.

“It is clear that cigarette brands produced in different countries vary in techniques of production and ingredients used”, said Dr. James Pirkle, deputy director for science at CDC’s National Center for Environmental Health, Division of Laboratory Sciences. “All of those tobacco products provide high amounts of cancer-causing substances, however, the research demonstrates that the levels of TSNA vary from nation to nation, and U.S.-made cigarettes contain the highest levels of them,” the scientist added.

The findings of the research are published in the latest issue of ‘Cancer Epidemiology, Biomarkers & Prevention’ Journal.

The research gives another evidence of the severe consequences of tobacco use, which is the major cause of preventable deaths across the world, killing over 5 million people a year.

According to the latest World Health Organization report, if tobacco usage is not regulated and reduced it would cause up to 8 million deaths annually by the year of 2030.

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